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Title:
SCROLL COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2002/061285
Kind Code:
A1
Abstract:
A scroll compressor that is easy of back pressure adjustment and capable of realizing high compression efficiency. The scroll compressor comprises a plurality of compression spaces formed by fixed spiral blades meshing with rotary spiral blades, a back pressure chamber disposed on the side opposite to the rotary spiral blade surface of the rotary spiral member, high and medium pressure spaces obtained by partitioning the back pressure chamber by seal members, a first passageway for feeding lubricating oil, which is fed to the high pressure space, to the medium pressure space, a second passageway for feeding lubricating oil, which is fed to the medium pressure space, to the suction space of the compression space, wherein the first passageway is intermittently put in communication by the rotary movement of a rotary spiral member.

Inventors:
Iida, Noboru (6-18-8, Ichiriyama Otsu-shi, Shiga, 520-2153, JP)
Sakuda, Atsushi (2-7-11-405, Nojihigashi Kusatsu-shi, Shiga, 525-0058, JP)
Hiwata, Akira (2-7-11-219, Nojihigashi Kusatsu-shi, Shiga, 525-0058, JP)
Sawai, Kiyoshi (1-13-2, Aoyama Otsu-shi, Shiga, 520-2101, JP)
Application Number:
PCT/JP2002/000638
Publication Date:
August 08, 2002
Filing Date:
January 29, 2002
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1006, Oaza Kadoma Kadoma-shi, Osaka, 571-8501, JP)
Iida, Noboru (6-18-8, Ichiriyama Otsu-shi, Shiga, 520-2153, JP)
Sakuda, Atsushi (2-7-11-405, Nojihigashi Kusatsu-shi, Shiga, 525-0058, JP)
Hiwata, Akira (2-7-11-219, Nojihigashi Kusatsu-shi, Shiga, 525-0058, JP)
Sawai, Kiyoshi (1-13-2, Aoyama Otsu-shi, Shiga, 520-2101, JP)
International Classes:
F04C27/00; F04C29/02; F04C18/02; F04C23/00; (IPC1-7): F04C18/02
Foreign References:
JPH1122665A
JPH05306689A
JP2000213476A
EP0822335A2
JPH05187369A
Attorney, Agent or Firm:
Iwahashi, Fumio c/o Matsushita Electric Industrial Co. (Ltd. 1006 Oaza Kadoma Kadoma-shi, Osaka, 571-8501, JP)
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